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hollis b fender
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Analysis of U.S. Underground Thin Seam Mining Potential: Data base final technical report
Hollis B. Fender, United States. Division of Solid Fuels Mining and Preparation, D. Keith Murray · Yayınevi bilinmiyor
66 sayfa · 1979
Coal mines and mining
Data Accumulation on the Methane Potential of the Coal Beds of Colorado
Hollis B. Fender, D. Keith Murray, United States. Bureau of Mines, Colorado Geological Survey · Yayınevi bilinmiyor
50 sayfa · 1978
Methane